Mortgage Calculator – Monthly Payment and Total Cost
The Mortgage Calculator helps homebuyers estimate their monthly mortgage payment, total interest, loan amount, and full repayment cost in seconds. Enter your home price, down payment, annual interest rate, and loan term — and instantly see what your mortgage will cost each month and over the life of the loan. Ideal for anyone comparing homes at different price points, evaluating loan options, or planning a property purchase. Formula based on the standard mortgage amortization calculation. Results are for planning and estimation purposes. Confirm figures with your lender before making decisions. Free mortgage calculator online with no sign-up required.
Formula
This calculator applies standard financial equations and cash-flow relationships using the provided inputs.
Quick Tip
Adjust one variable at a time to understand payment and total-cost sensitivity.
Shopping for a home? Enter the price, your down payment, the interest rate, and the loan term — and see your monthly payment and total cost right away. Takes ten seconds and tells you everything you need to start planning.
Featured Answer
Q: How do I calculate my monthly mortgage payment?
A: Monthly mortgage payment is calculated using the amortization formula: payment = loan amount × monthly rate × (1 + monthly rate)^months / ((1 + monthly rate)^months − 1). For a ₹50 lakh loan at 8.5% for 20 years, the monthly payment is approximately ₹43,390. Use this calculator to get your result instantly by entering home price, down payment, rate, and term.
How to Use Mortgage Calculator
- Enter the home price — the full purchase price of the property you want to buy.
- Enter the down payment — the upfront cash amount you are contributing from your own funds.
- Enter the interest rate — the annual interest rate quoted by your lender, typically between 7% and 11% in India.
- Enter the loan term in years — the repayment duration, usually 15, 20, or 30 years.
What is a Mortgage Payment?
A mortgage payment is the fixed monthly amount you pay to repay a home loan. It consists of two components: interest charged on the outstanding loan balance, and principal — the portion that actually reduces what you owe.
The standard formula used is: EMI = P × r × (1+r)^n / ((1+r)^n − 1)
Where P is the loan amount (home price minus down payment), r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the total number of monthly payments.
In the early months of a mortgage, most of the payment covers interest — very little reduces the principal. This gradually shifts over time until the final payments are almost entirely principal.
Beyond the monthly payment, the total interest and total payment figures reveal the true long-term cost of borrowing — numbers that often surprise first-time buyers.
Example: Home price ₹65,00,000, down payment ₹13,00,000, interest rate 8.75%, loan term 20 years.
| Field | Value |
|---|---|
| Loan Amount | ₹52,00,000 |
| Monthly Payment | ₹46,060 |
| Total Interest | ₹58,54,400 |
| Total Payment | ₹1,10,54,400 |
The total interest nearly matches the original loan — a strong argument for a larger down payment or shorter tenure.
Mortgage Payments Explained: What You Are Really Paying Each Month
Why Mortgage Calculator Matters
A mortgage is almost certainly the largest financial commitment most people will ever make. Yet many buyers walk into a property purchase knowing only the asking price — not what it will actually cost them month by month for the next 20 years.
The Mortgage Calculator closes that gap instantly. Enter four numbers — home price, down payment, interest rate, and loan term — and you get the monthly payment, total interest, and total cost.
Here is the thing that catches most buyers off guard: the total payment figure. On a ₹52 lakh loan at 8.75% for 20 years, you end up paying over ₹1.10 crore. That is double the loan amount. Knowing this before you buy is not scary — it is empowering. It helps you make smarter decisions about the down payment size, the tenure, and whether to negotiate a lower rate.
How to Calculate a Mortgage Payment — Step by Step
- Calculate the loan amount: home price minus down payment.
- Convert annual rate to monthly rate: annual rate ÷ 12 ÷ 100.
- Calculate total payments: loan term in years × 12.
- Apply the formula: EMI = P × r × (1+r)^n / ((1+r)^n − 1).
- Calculate total payment: monthly payment × total months.
- Calculate total interest: total payment minus loan amount.
Real-World Example
Comparing three home price scenarios at the same rate and term — showing how purchase price and down payment affect everything.
| Scenario A | Scenario B | Scenario C | |
|---|---|---|---|
| Home Price | ₹50,00,000 | ₹70,00,000 | ₹90,00,000 |
| Down Payment (20%) | ₹10,00,000 | ₹14,00,000 | ₹18,00,000 |
| Loan Amount | ₹40,00,000 | ₹56,00,000 | ₹72,00,000 |
| Rate / Term | 8.5% / 20 yr | 8.5% / 20 yr | 8.5% / 20 yr |
| Monthly Payment | ₹34,700 | ₹48,580 | ₹62,460 |
| Total Interest | ₹43,28,000 | ₹60,59,200 | ₹77,90,400 |
| Total Payment | ₹83,28,000 | ₹1,16,59,200 | ₹1,49,90,400 |
Scenario C costs ₹34.6 lakh more in total interest than Scenario A — purely from a ₹40 lakh higher purchase price. Worth noting when stretching budget.
Common Mistakes to Avoid
- Calculating EMI on the full property price — your mortgage payment is based on the loan amount (price minus down payment), not the full price. Always subtract the down payment first.
- Forgetting that lower EMI from longer tenure costs more overall — a 30-year term has a lower monthly payment than 20 years, but the total interest paid is dramatically higher.
- Using an approximate rate — even 0.25% difference in rate changes total interest significantly on large loans. Use the exact rate from your lender's offer letter.
- Ignoring extra costs — stamp duty, registration, processing fees, and property insurance add 2–4% to the upfront cost. Budget for these separately.
- Not stress-testing the EMI — calculate the payment at a rate 1–2% higher than current. If that number strains your budget, you may be over-extending.
- Assuming the first quoted rate is the best — negotiating the interest rate or comparing across 2–3 lenders can save several lakh rupees in total interest.
When to Use This Calculator
Use this tool before shortlisting properties — to establish what price range fits your monthly budget comfortably. Use it again when comparing two properties at different price points to understand the real payment difference.
For a full month-by-month payment breakdown, the Mortgage Amortization Calculator generates a complete schedule. For modelling the effect of extra monthly payments on payoff time, try the Mortgage Acceleration Calculator.
Pro Tips
Monthly payment — a widely used guideline is to keep total housing costs (EMI plus maintenance, insurance, taxes) below 40% of gross monthly income. Use this number to check that ratio.
Loan amount — this is the actual debt you are taking on. A larger down payment directly reduces this — and with it, every single payment for the next 20 years. Even ₹2–3 lakh extra down payment compounds into significant savings.
Total interest — compare this with the loan amount. If total interest exceeds the principal, seriously consider a larger down payment, a shorter tenure, or a better rate before signing.
Total payment — add this to your down payment to understand your all-in cost of ownership from a cash perspective. Then compare that to what the property might be worth in 20 years.
Important Assumptions and Limitations
This calculator assumes a fixed interest rate for the entire loan tenure. Floating-rate mortgages will have payments that change with market rates. Property taxes, insurance, maintenance costs, and processing fees are not included. Calculation method reviewed against standard mortgage amortization formula references.
Results are for planning and estimation purposes. Confirm figures with your lender before making decisions.
Frequently Asked Questions
Find answers to common questions about Mortgage Calculator
A mortgage payment is the fixed monthly amount you pay to your lender to repay a home loan. Each payment covers the interest charged for that month plus a portion of the outstanding principal. Early payments are mostly interest; later payments shift heavily toward principal as the balance reduces over the loan term.
Use the formula: payment = P × r × (1+r)^n / ((1+r)^n − 1), where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is total monthly payments. For a ₹40 lakh loan at 8.5% over 20 years: r = 0.00708, n = 240, monthly payment ≈ ₹34,700. This calculator computes it instantly.
The calculator uses the standard amortization formula and gives precise results for fixed-rate mortgages based on your inputs. It does not include property taxes, insurance, processing fees, or HOA costs. For floating-rate loans, the actual payment will vary with rate changes. Always verify the final EMI figure with your lender before committing.
Total interest is the sum of all interest payments over the entire loan tenure — the amount you pay above and beyond the principal you borrowed. For a 20-year mortgage, total interest often equals or exceeds the original loan amount. Minimising this through a larger down payment, shorter tenure, or lower rate is one of the most impactful financial decisions a borrower can make.
Use it before property hunting to set a realistic price range based on your income and desired EMI. Use it again when you receive a formal loan offer to verify the lender's figures. And use it to compare two loan options — different rates, down payments, or tenures — to identify which is genuinely cheaper over the full term.
Most lenders and financial advisors suggest keeping total EMI commitments — including the mortgage and any other loans — below 40% to 50% of your monthly take-home salary. Staying closer to 35% gives you more financial flexibility and resilience against income changes or unexpected expenses during the loan tenure.
Yes. Enter 30 as the loan term in years and the calculator handles the full 360-month amortization. Be aware that a 30-year mortgage has a lower monthly payment than a 20-year loan on the same amount, but the total interest paid is substantially higher — often by tens of lakh rupees. Run both scenarios to compare.
The down payment directly reduces the loan amount — and since the monthly payment is calculated on the loan amount, a higher down payment lowers every single monthly payment for the entire term. It also reduces total interest paid. For example, increasing a down payment from 10% to 20% on a ₹70 lakh home cuts the loan by ₹7 lakh and saves several lakh in total interest.